Find the top 10 for the large files in /var
du -a /var | sort -n -r | head -n 10
If below log too large we can clean it without delete
/var/log/audit/audit.log
truncate -s 0 audit.log
Check the cron job last run date
ls -l /var/spool/cron/lastrun/
Maybe root password expired
chage -l root
chage -m 0 -M 99999 root
Clean old password remember
true > /etc/security/opasswwd
Yahoo
http://help.yahoo.com/l/us/yahoo/mail/postmaster/bulkv2.html
https://support.google.com/mail/contact/msgdelivery?rd=1
conf/server.xml
<Connector
protocol=”org.apache.coyote.http11.Http11NioProtocol”
port=”8443″ maxThreads=”200″
scheme=”https” secure=”true” SSLEnabled=”true”
keystoreFile=”conf/cert/xxx.pfx” keystorePass=”xxx”
keystoreType=”PKCS12″
clientAuth=”false” sslProtocol=”TLS”/>
Gpg4win 3.1.10
https://gpg4win.org/thanks-for-download.html
gpg –generate-key
gpg -a –output C:\MyPublic.asc –export 5F27F353
gpg –import C:\Bank_EN_PUBLIC.asc
gpg –list-keys –keyid-format short
pub rsa2048/5F27F353 2019-10-22 [SC]
7B3022F7A5BD998561D548A1C5C9EB315F27F353
uid [ultimate] MyName abc@123.com
sub rsa2048/EDF8DB07 2019-10-22 [E] [expires: 2021-10-21]
gpg –edit-key EDF8DB07
key 1
expire
0
openssl pkcs12 -export -out xxx_server.pfx -inkey xxx_server.key -in xxx_server.crt
SELECT CONVERT(VARCHAR(50), 0xC06DCADF544BC3D6ECE7C64F485D2846E7A93F55, 2)